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Liquid crystal panel as well as method and liquid crystal display for performing voltage pre-charging on pixels of liquid crystal panel

A liquid crystal panel, pixel voltage technology, applied in static indicators, instruments, etc., can solve the problem of insufficient charging time for scanning frequency pixels, and achieve the effect of increasing actual charging time and improving efficiency

Inactive Publication Date: 2013-08-07
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in liquid crystal displays such as high refresh rates above 120Hz or 3D tri-gates, thin film transistors (Thin Film Transistor, referred to as TFT) will cause insufficient charging time for pixels due to high scanning frequency.

Method used

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  • Liquid crystal panel as well as method and liquid crystal display for performing voltage pre-charging on pixels of liquid crystal panel
  • Liquid crystal panel as well as method and liquid crystal display for performing voltage pre-charging on pixels of liquid crystal panel
  • Liquid crystal panel as well as method and liquid crystal display for performing voltage pre-charging on pixels of liquid crystal panel

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Embodiment Construction

[0015] Embodiments of the invention will now be described in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures. In the following description, unnecessary detailed descriptions of well-known structures and / or functions may be omitted in order to avoid obscuring the inventive concept caused by unnecessary detailed descriptions of well-known structures and / or functions.

[0016] In this embodiment, compared with the prior art, the frequency of the clock signal is reduced by half, and the time of one clock cycle of the clock signal is equivalent to the time of two clock cycles in the prior art, then the scanning voltage waveform of the scanning line The duration of one clock cycle is equivalent to the time of two clock cycles in the prior art, but each scanning line is only turned on once, an...

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Abstract

The invention discloses a method for performing voltage pre-charging on the pixels of a liquid crystal panel. The liquid crystal panel comprises a plurality of pixels arranged in an array. The method comprises the following steps of: sending out a high level by a grid starting signal, opening the grid of a TFT (Thin Film Transistor) in any odd-numbered line at the rising edge moment of a first clock signal, and charging the pixels in odd-numbered lines; delaying a preset time; and opening the grid of a TFT in the next even-numbered line adjacent to the any odd-numbered line at the rising edge moment of a second clock signal, and charging the pixels in the even-numbered line. The middle part of the scanning voltage waveform on each scanning line cannot be descended, so that the pre-charging benefit is improved, and the charging time of pixels is improved. The invention further discloses a liquid crystal panel and a liquid crystal display with the liquid crystal panel.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display. More specifically, it relates to a liquid crystal panel, a method for precharging its pixels, and a liquid crystal display. Background technique [0002] Currently, in liquid crystal displays such as high refresh rates above 120Hz or 3D tri-gates, thin film transistors (Thin Film Transistor, TFT for short) will cause insufficient charging time for pixels due to high scanning frequency. In this case, the pre-charge technology is usually used, that is, the gate of the TFT is turned on in advance to charge the pixel (pixel), so that the pixel can be charged to the required potential faster within its actual charging time. [0003] Such as figure 1 As shown, in order to reduce the capacitive coupling (feed through) effect generated when the TFT is turned off, the gate turn-on voltage VGH of the TFT will be chamfered. In this way, when the pixels are precharged, the scanning voltage ...

Claims

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Application Information

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IPC IPC(8): G09G3/36
Inventor 吴宇
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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